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一、前言航空象片判读,目前存在着三种技术水平:①目视判读;②目视判读结合某些数字化数据处理,即计算机辅助方法;③用数字化处理系统进行自动分类。从目视判读达到自动化分类,还要经历一段较长的时间,所以第二种技术水平在目前有着重要的实践意义。自从航空摄影问世以来就存在着目视判读,尽管它随着航空摄影技术应用的发展也不断地改进,但始终没有摆脱判读者经验束缚。判读技术水平进步的关键就是要使判读从经验转化到科学。我们在《用计算机辅助进行航空象片森林分类的研究》(东北林学
I. Foreword Interpretation of aerial photographs, there are three technical levels: ① visual interpretation; ② visual interpretation combined with some digital data processing, that is, computer-aided method; ③ automatic classification using digital processing system. From the visual interpretation of the automated classification, but also go through a long period of time, so the second level of technology has important practical significance. There has been a visual interpretation since the advent of aerial photography, and despite its continuous improvements in the application of aerial photography technology, it has never been shackled by the experience of the reader. The key to improving the technical level is to translate interpretations from experience to science. We are in the “computer-aided forest image classification research” (Northeast Forestry Research